altitude datum

简明释义

高度基准;

英英释义

例句

1.The city planning department referenced the altitude datum when designing new buildings.

城市规划部门在设计新建筑时参考了高程基准。

2.In aviation, the altitude datum is crucial for ensuring safe flight levels.

在航空中，高程基准对于确保安全飞行高度至关重要。

3.The surveyor used an altitude datum to determine the elevation of the mountain accurately.

测量员使用高程基准来准确确定山的海拔。

4.Geologists often rely on an altitude datum to assess land stability.

地质学家经常依赖高程基准来评估土地稳定性。

5.The altitude datum provided by the GPS device was essential for the hiking expedition.

GPS设备提供的高程基准对远足探险至关重要。

作文

Understanding the concept of altitude datum is crucial for various fields, including aviation, geography, and engineering. The term altitude datum refers to a reference point used to measure altitude, which is the height of an object or point in relation to sea level or ground level. This reference point is essential for ensuring accuracy in navigation, construction, and mapping. In aviation, for instance, pilots rely on altitude datum to determine their flying height above sea level, which is vital for safe air travel. If a pilot does not have accurate altitude information, they may risk flying too low or too high, potentially leading to dangerous situations.In geography, altitude datum plays a significant role in topographic mapping. Cartographers use this reference point to create accurate representations of the Earth's surface. By establishing a consistent altitude datum, they can ensure that the elevation of mountains, valleys, and other landforms is represented correctly. This is important not only for scientific research but also for urban planning and environmental management. For example, when designing infrastructure such as roads or bridges, engineers must consider the altitude datum to ensure that these structures are built at appropriate heights, taking into account factors like flooding and land stability.Moreover, the importance of altitude datum extends to the field of climate science. Researchers studying climate change often analyze changes in elevation over time. By using a consistent altitude datum, they can track how glaciers are melting or how sea levels are rising in relation to specific geographic points. This data is crucial for understanding the broader impacts of climate change on different ecosystems and communities.The establishment of a reliable altitude datum is not without its challenges. Different countries may use varying reference points, which can lead to discrepancies in altitude measurements. For example, the United States uses the North American Vertical Datum (NAVD) 1988, while many other countries utilize the European Vertical Reference System. These differences can create confusion, especially in international contexts where precise altitude data is necessary for safety and coordination.To address these issues, there have been efforts to standardize altitude datum across borders. Organizations such as the International Association of Geodesy work to promote consistency in geodetic measurements, including altitude. By creating a unified system, they aim to enhance collaboration among nations and improve the accuracy of altitude-related data.In conclusion, the concept of altitude datum is integral to many aspects of modern life. From aviation and geography to climate science, having a reliable reference point for measuring altitude is essential for safety, accuracy, and effective planning. As our understanding of the Earth continues to evolve, so too will the methods we use to establish and maintain altitude datum. Embracing advancements in technology and fostering international cooperation will be key to overcoming the challenges associated with altitude measurement in the future.

理解高度基准的概念对于航空、地理和工程等多个领域至关重要。术语高度基准指的是用于测量高度的参考点，高度是指物体或点相对于海平面或地面的位置。这一参考点对于确保导航、建设和制图的准确性至关重要。例如，在航空中，飞行员依赖于高度基准来确定他们在海平面上的飞行高度，这对安全飞行至关重要。如果飞行员没有准确的高度信息，他们可能会面临飞得太低或太高的风险，从而导致危险的情况。在地理学中，高度基准在地形图绘制中发挥着重要作用。制图师使用这一参考点来创建地球表面的准确表示。通过建立一致的高度基准，他们可以确保山脉、山谷和其他地形的海拔高度被正确表示。这不仅对科学研究重要，而且对城市规划和环境管理也至关重要。例如，在设计道路或桥梁等基础设施时，工程师必须考虑高度基准，以确保这些结构在适当的高度建造，考虑到洪水和土地稳定性等因素。此外，高度基准的重要性还延伸到气候科学领域。研究气候变化的研究人员经常分析随时间变化的海拔。通过使用一致的高度基准，他们可以追踪冰川融化或海平面上升与特定地理点的关系。这些数据对于理解气候变化对不同生态系统和社区的更广泛影响至关重要。建立可靠的高度基准并非没有挑战。不同国家可能使用不同的参考点，这可能导致高度测量中的差异。例如，美国使用北美垂直基准（NAVD）1988，而许多其他国家则采用欧洲垂直参考系统。这些差异可能会造成混淆，尤其是在国际背景下，当精确的高度数据对于安全和协调至关重要时。为了解决这些问题，各国已努力标准化高度基准。国际大地测量协会等组织致力于促进地理测量，包括高度的统一性。通过创建统一的系统，他们旨在增强国家之间的合作，提高与高度相关数据的准确性。总之，高度基准的概念是现代生活许多方面的核心。从航空、地理到气候科学，拥有一个可靠的高度测量参考点对于安全、准确和有效规划至关重要。随着我们对地球理解的不断发展，我们建立和维护高度基准的方法也将不断演变。拥抱技术进步和促进国际合作将是克服未来与高度测量相关挑战的关键。